July Recipie Swap: Beef Kebabs

This is for the recepie swap here . There's a button I'll try to work out soon.
Photos to appear next time I make this.
Ingredients:
1 large round steak (more if you like lots of meat)
1 lemon
3 cloves garlic
olive oil
salt
1 large ziploc bag
1 red pepper
1 green pepper
1 onion
1 container cherry tomatos (about 24)
12 mushrooms
1 zucchini
12 wood skewers
baking sheet, cake pan or other flat container

The night before or the morning of the meal, chop round steak into 2 inch pieces and place into ziploc bag. Cut lemon in half and squeeze juice into bag. Chop garlic coarsely and drop in bag. Add olive oil to cover and sprinkle in some salt (add other spices if you like). Place in refrigerator until ready to use.

Soak wood skewers. Chop peppers, onion and zucchini into 2 inch pieces. String veggies and meat, alternating, on kebab sticks. Place in shallow dish as you finish them. Pour remaining marinade from ziploc bag over kebabs (its ok, you're going to cook them) and let sit for 10 min.

Heat BBQ to 350ish. Place kebabs on the top rack and roast for 45 min. or until everything is tender and not charred. Enjoy.

After you've done it once or twice, switch around the meat and veggies to suit your own taste. Have fun. I love making this for company, becuase I can have the meat and veggies all prepared the night before and then just assemble and cook them.